NCR321Z

NCR320Z / NCR321Z 250 mA LED driver in SOT223 Rev. 1 — 4 February 2019 Product data sheet 1. Product profile 1.1. General description LED driver consisting of a resistor-equipped NPN transistor with two diodes on one chip in a medium power SOT223 (SC-73) Surface-Mounted Device (SMD) plastic package. Table 1. Product overview Type number Package Nexperia NCR320Z SOT223 NCR321Z SOT223 JEITA SC-73 SC-73 1.2. Features and benefits Stabilized output current of 10 mA without external resistor Stabilized output current adjustable up to 250 mA when an external resistor is used High current accuracy at supply voltage variation Low voltage overhead of 1.4 V Reduces component count and board space High power dissipation of 1250 mW Supply voltage up to 16 V Digital PWM input up to 10 kHz frequency for NCR321Z AEC-Q101 qualified 1.3. Applications Constant current LED driver Generic constant current source Automotive applications (for example: interior lighting, dash board, instrumentation, number plate light) Increase stabilized output current by paralleling drivers Nexperia NCR320Z / NCR321Z 250 mA LED driver in SOT223 1.4. Quick reference data Table 2. Quick reference data Symbol Parameter VEN enable voltage NCR320Z NCR321Z Vout output voltage Iout stabilized output current NCR320Z NCR321Z [1] Pulse test: tp ≤ 300 µs; δ ≤ 0.02 Conditions Vout= 1.4 V; VEN= 12 V Vout= 1.4 V; VEN= 3.3 V Min Typ Max Unit - - 25 V - - 4.5 V - - 16 V [1...